ASTROSAT CZTI

Data Quality Report

Orbit 41038

Creation date: 2024-06-27T22:23:33.569524
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A12_029T02_9000005590_41038cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41038cztM0_level2_quad_clean.evt
Size (bytes)323,406,72092,306,880
Size308.4 MB 88.0 MB
Events in quadrant A2,898,651633,231
Events in quadrant B2,422,077648,632
Events in quadrant C2,953,742599,178
Events in quadrant D3,289,825547,892

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116843
B0105392
C0118542
D0133422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5226180.344432%
B522690.172216%
C52261031.970915%
D52261853.539992%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7139 5227 3 3 0.04% 0.06%
B 7139 5227 0 0 0.00% 0.00%
C 7139 5227 88 88 1.23% 1.68%
D 7139 5227 152 152 2.13% 2.91%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 487105 3882.54 617 605 125.3
A 15 191 14091 107.62 617 605 125.3
A 13 254 8435 62.48 617 605 125.3
B 12 111 14813 121.33 608 591 117.2
B 11 111 13850 113.11 608 591 117.2
B 14 111 13398 109.25 608 591 117.2
C 14 254 240304 1743.68 590 594 137.5
C 15 214 224090 1625.73 590 594 137.5
C 0 10 128972 933.84 590 594 137.5
D 13 249 776431 5465.64 588 571 142.0
D 2 249 98063 686.79 588 571 142.0
D 12 79 73486 513.66 588 571 142.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter